C# WPF 在控件中添加自定义属性
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WPF Adding a custom property in a control
提问by oimitro
Ok i have a WPF application in which i have a resource dictionary. In the dictionary i have a new style for a Buttonthat looks like this :
好的，我有一个 WPF 应用程序，其中有一个资源字典。在字典中，我有一个新样式，Button如下所示：
<Style x:Key="MenuButtonStyle" TargetType="Button">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Button}">
<Grid>
<Image x:Name="Imager" RenderOptions.BitmapScalingMode="HighQuality" Width="{TemplateBinding Width}" Height="{TemplateBinding Height}" Source="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=Tag}" VerticalAlignment="Center" HorizontalAlignment="Center" Stretch="UniformToFill"/>
</Grid>
<ControlTemplate.Triggers>
<Trigger Property="IsMouseOver" Value="true">
<Setter TargetName="Imager" Property="Width" Value="24" />
<Setter TargetName="Imager" Property="Height" Value="24" />
</Trigger>
<Trigger Property="IsPressed" Value="true">
<Setter TargetName="Imager" Property="Width" Value="16" />
<Setter TargetName="Imager" Property="Height" Value="16" />
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
And use this stye in my XAML like this :
并在我的 XAML 中使用这种麦粒肿，如下所示：
<Button x:Name="Home" Style="{DynamicResource MenuButtonStyle}" Width="20" Height="20" Tag="\Images\Home.png"/>
<Button x:Name="Settings" Style="{DynamicResource MenuButtonStyle}" Width="20" Height="20" Tag="\Images\Settings.png"/>
Now what i want to do is, Create a new property in the Buttonstyle named OverWidthand OverHeightin order to use it like this :
现在我想要做的是，创造的一个新的属性Button命名样式OverWidth并OverHeight以使用它像这样：
<Trigger Property="IsMouseOver" Value="true">
<Setter TargetName="Imager" Property="Width" Value= OVERWIDTH/>
<Setter TargetName="Imager" Property="Height" Value= OVERHEIGHT/>
</Trigger>
And in XAML :
在 XAML 中：
<Button x:Name="Home" Style="{DynamicResource MenuButtonStyle}" Width="20" Height="20" Tag="\Images\Home.png" OVERWIDTH = "24"/>
I dont even know if this is possible. I dont want to use Binding SomeIntengerfrom C# code.
Thanks in advance.
我什至不知道这是否可能。我不想Binding SomeIntenger从 C# 代码中使用。提前致谢。
采纳答案by Vyacheslav Volkov
You can use the attached properties:
您可以使用附加属性：
public class Extensions
{
public static readonly DependencyProperty OverWidthProperty =
DependencyProperty.RegisterAttached("OverWidth", typeof(double), typeof(Extensions), new PropertyMetadata(default(double)));
public static void SetOverWidth(UIElement element, double value)
{
element.SetValue(OverWidthProperty, value);
}
public static double GetOverWidth(UIElement element)
{
return (double)element.GetValue(OverWidthProperty);
}
}
Xaml:
Xml：
xmlns:extensions="clr-namespace:NAMESPACE FOR Extensions class"
<Trigger Property="IsMouseOver" Value="true">
<Setter Property="MinWidth" Value="{Binding Path=(extensions:Extensions.OverWidth), RelativeSource={RelativeSource Self}}"/>
</Trigger>
<Button extensions:Extensions.OverWidth="100" Width="10"/>
回答by Sergio Perez
I used the Tag property, which works very well. I can write anything on Tag
我使用了Tag 属性，效果很好。我可以在标签上写任何东西
For example (AXML) on a Button:
例如 (AXML) 在Button 上：
<Button x:Name="Btn80" Click="eventoClick" Tag="80">Casillero 80</Button>}
I can use a string field to add listsor valuesint, date, etc to then interpretand convertthe string into anything.
我可以使用字符串字段添加列表或值int、date等，然后将字符串解释并转换为任何内容。
**I used this solution, due to the need to add an ID field to a button.
**我使用了这个解决方案，因为需要给按钮添加一个 ID 字段。
